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Health Hazard Evaluations (HHEs)

Each month we will update this page to highlight newly released final reports and information on new and emerging hazards we are evaluating. Check back often to see what we are up to!

What's New

Evaluation of Exposures at an Electronics Recycling Company

HHE Program Investigators found metals in the air and elevated blood lead levels among employees. Employees were also exposed to flame retardants in the air, on their hands, and in their blood and urine. Investigators recommended adding local exhaust ventilation, stopping dry sweeping, and providing onsite laundering facilities or contracting with a laundering service. Read the report:

Characterizing Exposures During Laser Tattoo Removal in a Hospital Dermatology Center

Although we measured low levels of some metals, VOCs, bacteria, and particles, none of our results were above occupational exposure limits. HHE Program investigators recommended strengthening the laser safety program by replacing laser protective equipment when worn out or damaged and only using “laser in use” signs when lasers are being used. Read the report:

2017 Health Hazard Evaluation Program Annual Report

The NIOSH Health Hazard Evaluation (HHE) Program is pleased to share its 2017 annual report. Our report includes summaries of projects that were interesting and other highlights of our year. We hope the report stimulates conversations about who the HHE Program is and how we make a difference for the health and safety of employees throughout the United States. The annual report is available here: